The Board of Trustees of MFS Government Markets Income Trust (NYSE: MGF) has accelerated to September 1, 2007, the implementation of a level-distribution plan whereby the Trust will make monthly distributions to its common shareholders at an annual minimum fixed rate of 7.25% based on average monthly net asset value of the Trust's common shares. The plan originally had been scheduled to begin October 1, 2007.

The purpose of the plan is to provide shareholders with a predictable fixed minimum rate of distribution. The Trust's adviser, MFS Investment Management, has advised the Board that the plan may have the effect of narrowing or eliminating the share price discount to net asset value (NAV) at which the Trust's shares trade, although there can be no assurance in this regard.

The Board in April 2007 also approved MFS' recommendation to change the Trust's investment strategy to seek a higher yield from the portion of the portfolio not required to be invested in U.S. government or agency securities, as well as a proposal to seek shareholder approval to allow the Trust to use leverage. The intent of both of these measures also is to attempt to narrow the share price discount to net asset value.

MFS manages $202 billion in assets on behalf of more than 5 million individual and institutional investors worldwide as of June 30, 2007. The company traces its origins to 1924 and the creation of America's first mutual fund.

For more complete information about the Fund, including risks, charges, and expenses, please see the Fund's annual and semi annual shareholder report or contact your financial adviser.

Statements made in this release that look forward in time involve risks and uncertainties and are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such risks and uncertainties include, without limitation, the adverse effect from a decline in the securities markets or a decline in a Fund's performance, a general downturn in the economy, competition from other closed-end investment companies, changes in government policy or regulation, inability of a Fund's investment adviser to attract or retain key employees, inability of a Fund to implement its investment strategy, inability of a Fund to manage rapid expansion and unforeseen costs and other effects related to legal proceedings or investigations of governmental and self-regulatory organizations.

MFS Investment Management
John Reilly, 617-954-5305
or
Dan Flaherty, 617-954-4256